lib/htmlpurifier/HTMLPurifier/Strategy.php

   1 <?php
   2
   3 /**
   4  * Supertype for classes that define a strategy for modifying/purifying tokens.
   5  *
   6  * While HTMLPurifier's core purpose is fixing HTML into something proper,
   7  * strategies provide plug points for extra configuration or even extra
   8  * features, such as custom tags, custom parsing of text, etc.
   9  */
  10
  11 HTMLPurifier_ConfigSchema::define(
  12     'Core', 'EscapeInvalidTags', false, 'bool',
  13     'When true, invalid tags will be written back to the document as plain '.
  14     'text.  Otherwise, they are silently dropped.'
  15 );
  16
  17 class HTMLPurifier_Strategy
  18 {
  19
  20     /**
  21      * Executes the strategy on the tokens.
  22      *
  23      * @param $tokens Array of HTMLPurifier_Token objects to be operated on.
  24      * @param $config Configuration options
  25      * @returns Processed array of token objects.
  26      */
  27     function execute($tokens, $config, &$context) {
  28         trigger_error('Cannot call abstract function', E_USER_ERROR);
  29     }
  30
  31 }
  32